Korean thermal power has had a prominent position in energy policies for the past decades. However, pollutants from the combustion of fossil fuels used in converting thermal energy into electrical energy have undesirable effect on the environment. This paper applies fuzzy set theory (FST) to...

With the explosive growth of the internet and the change in consumer demand, post-PC is emerging as a substitute for the existing desktop PC and laptop PC. post-PC is a new computer which is portable with wireless networking, cheaper than the existing PC and specializing in the specific...

The Korean government has selected nuclear energy as the major source of electricity generation in Korea because of the lack of domestic energy resources. Thus, nuclear energy has become an increasingly vital part of resources for national development. The national nuclear energy R&D projects...

Approximating bottled water consumption (BWC) distribution is complicated by zero observations in the sample. To deal with the zero observations, a mixture model of BWC distributions is considered to allow a point mass at zero. The model is empirically verified for household BWC survey data.

Conventional parametric estimation of the hedonic price models is not robust to heteroscedastic and/or non-normal error structure. This paper applies least absolute deviations (LAD) estimation as a robust approach to estimating the hedonic price models, using the Korea housing markets data. The...

As an alternative to the classical approach for analysing dichotomous choice environmental valuation data, this note develops a Bayesian approach by using the idea of Gibbs sampling and data augmentation. A by-product from the approach is a welfare measure, such as the mean willingness to pay,...

Approximating the distribution of mobile communications expenditures (MCE) is complicated by zero observations in the sample. To deal with the zero observations by allowing a point mass at zero, a mixture model of MCE distributions is proposed and applied. The MCE distribution is specified as a...

This article investigates empirically the impacts of the internet access charge on economic activity using a cross-country analysis based on data from 76 countries for the year 1998-2001. The results show that the level of the Internet access charge has a significantly negative effect on the...

This paper examines the long-run and short-run causality issues between public R&D expenditure and private R&D expenditure in Korea by using the cointegration and error-correction models. The overall results show that there exists bidirectional causality between public R&D expenditure and...